Answers

Subtract 63/84 from 54/70

54/70 - 63/84 is 3/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   54/70 = 54 × 6/70 × 6 = 324/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   63/84 = 63 × 5/84 × 5 = 315/420
4. Subtract the two like fractions:
   324/420 - 315/420 = 324 - 315/420 = 9/420
5. After reducing the fraction, the answer is 3/140

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